I wanted to post this here to help others avoid what i went through i bought a dpf delete kit from gear box z vendor and thought what a great deal well i was wrong they talk about their customer support and great product what a joke.When i installed it i got error codes right away i called tech support and spoke with seth and then sam this went on for 3 months and they couldnt figure it out they actually told me that it was my truck and not their product so after fighting with this idoit for 3 months i decided to return the piece of junk and get a refund well another month and a half go by still nothing i had to call this sam guy about 10 times before i could get my money back and when i did it was shrot changed no shock there. i went out and bought an efi live and what a blessing it worked right away no codes truck works great now so to all you guys who want a dpf dont buy it from gear box z unless your a paitient person and dont need support cause you wont get it from these guys